Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
chieu sang » chieu sach, chieu xanh, hieu lang
nhanh mang » nhanh lang, hanh mang, nhanh quang
dung cong » dung trong
mang vat » dang vat, bang vat, cang vat
vat dung » van dung, va dung, viet dung
cong dan » cong san, cong tan, huong dan
toan cau » toan cao, toan tap, toan tai
toan ban » van ban

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: theo chieu sang - nhanh mang vat dung cong dan ((toan cau) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu sang - nhanh mang vat dung cong dan ((toan cau) OR (toan ban))*.